Apparatus for supporting a drilling platform on the ocean floor

Details Apparatus for supporting a drilling platform on the ocean floor Apparatus for supporting a drilling platform on the ocean floor

1976-02-17

1977-09-06

Shapiro, Jacob

Boring or penetrating the earth

Below-ground impact members

With releasable means to detachably retain telescoping...

61 93, 175 9, E02B 1700, E02D 2704

Patent

active

040459675

ABSTRACT:
A mounting structure for supporting a drilling platform on the ocean floor comprises an open precast vessel having a bottom wall and a side wall extending up from and around the perimeter of the bottom wall which is adapted to be recessed in the ocean floor at the drilling site. A monopod drilling structure having a base and a supporting column extending upwardly from the base to a drilling platform is positioned on top of the vessel with the bottom of the supporting column having a vertical passage opening through the bottom of the base into the vessel. Sealing means is provided between the top of the vessel and the bottom of the drilling structure which provides a water-tight seal, permitting the interior of the vessel to be pumped dry when the drilling structure is in place.

REFERENCES:
patent: 2669846 (1954-02-01), Shannon
patent: 3522709 (1970-08-01), Vilain

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